符合標準EN55022 - B類標準意法半導體公司的EVLVIP17 - 5WCHG是5W開關電源（SMPS）設計，采用意法半導體公司的VIPER17HN，具有低待機功耗的特性，主要用作旅行電池充電器，如手機，掌上電腦和電子游戲的電池充電。充電器的輸入(ru)電(dian)壓(ya)為(wei)90 - 264Vac，頻率45 - 66Hz，輸出(chu)電(dian)壓(ya)5.1伏直流± 2％，輸出(chu)電(dian)流1 ± 5％，電(dian)纜壓(ya)降補償（0.2V的/甲），無負(fu)載在(zai)高火(huo)線電(dian)壓(ya)的輸入(ru)功(gong)率低于100兆瓦，短路保護，并在(zai)短路故障消除后自動重(zhong)起，印刷電(dian)路板尺寸為(wei)53 × 26毫米，安全特性(xing)和EN60065兼(jian)容，電(dian)磁干擾滿足標(biao)(biao)準EN5022 - B類標(biao)(biao)準。

     本文介紹了EVLVIP17 - 5WCHG主要特性，電路板外形圖以及詳細電路圖和所用材料清單（BOM）的。 EVLVIP17 - 5WCHG：5瓦的低待機功耗電池充電器演示板的基礎上VIPER17HN的EVLVIP17 - 5WCHG演示板是一個5瓦的作為，如移動電話，掌上電腦和電子游戲應用旅行使用開關電源。該委(wei)員會(hui)的目的是(shi)(shi)(shi)證(zheng)明該VIPER17HN離線高電(dian)壓(ya)轉(zhuan)換(huan)(huan)器(qi)的性(xing)能。其(qi)(qi)低(di)功(gong)耗(hao)(hao)和(he)其(qi)(qi)他特性(xing)，由于(yu)良好的電(dian)氣性(xing)能實現。為了(le)獲得(de)恒定的輸(shu)出電(dian)壓(ya)和(he)電(dian)流調(diao)節（簡歷/消委(wei)會(hui)），TSM1052簡歷/消委(wei)會(hui)控制器(qi)上使用(yong)的次要方(fang)面。這(zhe)TSM1052是(shi)(shi)(shi)非(fei)(fei)(fei)常(chang)適(shi)合(he)這(zhe)種類型(xing)的應用(yong)，提供了(le)一(yi)(yi)個非(fei)(fei)(fei)常(chang)小的封裝(zhuang)非(fei)(fei)(fei)常(chang)低(di)的電(dian)流消耗(hao)(hao)（采用(yong)SOT23 - 6L）。該轉(zhuan)換(huan)(huan)器(qi)實現了(le)一(yi)(yi)個反激拓撲結(jie)構，這(zhe)是(shi)(shi)(shi)理想(xiang)的低(di)功(gong)耗(hao)(hao)，低(di)成本的隔離轉(zhuan)換(huan)(huan)器(qi)。在小學方(fang)面，VIPER17HN使用(yong)。該IC是(shi)(shi)(shi)毒蛇的+家(jia)族，從它的附(fu)加功(gong)能和(he)保護的利益。此設(she)備，設(she)計采用(yong)了(le)一(yi)(yi)個多芯(xin)片方(fang)案，包括一(yi)(yi)個先進的電(dian)流模式PWM控制器(qi)和(he)雪崩的小幅下降，7封裝(zhuang)堅固800 V的功(gong)率MOSFET。該轉(zhuan)換(huan)(huan)器(qi)在連續和(he)非(fei)(fei)(fei)連續導電(dian)模式工程取決于(yu)輸(shu)入(ru)電(dian)壓(ya)（電(dian)路有(you)一(yi)(yi)個范圍廣(guang)闊(kuo)的輸(shu)入(ru)）和(he)輸(shu)出負載。

     該(gai)控制(zhi)器(qi)(qi)后綴為(wei)“H”規定，開關頻率(lv)(lv)是115千赫(he)，內部(bu)固定的，允許的功率(lv)(lv)元(yuan)件(jian)減少。應用程序設計，以降低整體元(yuan)件(jian)數量(liang)和(he)(he)適(shi)配器(qi)(qi)的成本(ben)。輸入部(bu)分(fen)包括(kuo)一個浪涌電流限(xian)制(zhi)和(he)(he)故障保護(hu)，arectifier橋(qiao)，兩(liang)條電解(jie)電容和(he)(he)大量(liang)作為(wei)前電感熔斷(duan)電阻器(qi)(qi)高端AC - DC轉換(huan)器(qi)(qi)和(he)(he)EMC濾波器(qi)(qi)。

    變壓(ya)(ya)器是(shi)(shi)(shi)一(yi)個層(ceng)類型，利用(yong)(yong)一(yi)個標(biao)準的(de)(de)(de)(de)(de)EF12.6鐵氧體磁芯，并與大約75 V電(dian)(dian)(dian)(dian)壓(ya)(ya)設計的(de)(de)(de)(de)(de)反(fan)映。這(zhe)個特(te)點是(shi)(shi)(shi)變壓(ya)(ya)器繞組(zu)的(de)(de)(de)(de)(de)技術(shu)，消除了常用(yong)(yong)的(de)(de)(de)(de)(de)?1安全電(dian)(dian)(dian)(dian)容(rong)(rong)器的(de)(de)(de)(de)(de)需(xu)要之間的(de)(de)(de)(de)(de)主要和次要方(fang)面。一(yi)個RCD鉗位網絡(luo)用(yong)(yong)于漏(lou)感消磁。該電(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)(de)啟動(dong)是(shi)(shi)(shi)由(you)內部管(guan)理，高壓(ya)(ya)的(de)(de)(de)(de)(de)VIPER17HN啟動(dong)發電(dian)(dian)(dian)(dian)機(ji)。這(zhe)條賽道(dao)的(de)(de)(de)(de)(de)典型匯3電(dian)(dian)(dian)(dian)流從(cong)漏(lou)極(ji)引腳和收費(fei)內徑(jing)電(dian)(dian)(dian)(dian)容(rong)(rong)。這(zhe)個電(dian)(dian)(dian)(dian)流值減少(shao)到(dao)0.6毫安在有保障(zhang)的(de)(de)(de)(de)(de)干預，以提(ti)高試用(yong)(yong)期重(zhong)新啟動(dong)，從(cong)而減少(shao)對永(yong)久(jiu)性(xing)故障(zhang)的(de)(de)(de)(de)(de)情(qing)況(kuang)下，功(gong)率器件(jian)的(de)(de)(de)(de)(de)壓(ya)(ya)力。為VIPER17HN電(dian)(dian)(dian)(dian)源獲得自我供(gong)(gong)應(ying)從(cong)一(yi)激配(pei)置連接的(de)(de)(de)(de)(de)變壓(ya)(ya)器繞組(zu)。該電(dian)(dian)(dian)(dian)路提(ti)供(gong)(gong)電(dian)(dian)(dian)(dian)壓(ya)(ya)，理想情(qing)況(kuang)下，直接成比(bi)例的(de)(de)(de)(de)(de)輸出(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)。在實踐中，因為這(zhe)是(shi)(shi)(shi)沒有Y型帽變壓(ya)(ya)器有很高的(de)(de)(de)(de)(de)漏(lou)感，作為峰值初級電(dian)(dian)(dian)(dian)流增大selfsupply電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)增加。無(wu)論如何，由(you)于廣泛內徑(jing)的(de)(de)(de)(de)(de)VIPER17HN電(dian)(dian)(dian)(dian)壓(ya)(ya)范(fan)圍的(de)(de)(de)(de)(de)情(qing)況(kuang)（從(cong)8.5 V至23五(wu)）正確的(de)(de)(de)(de)(de)供(gong)(gong)應(ying)總是(shi)(shi)(shi)提(ti)供(gong)(gong)。內部MOSFET的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流限制(zhi)降(jiang)低(di)（從(cong)0.4的(de)(de)(de)(de)(de)面值）通過使用(yong)(yong)電(dian)(dian)(dian)(dian)阻R16連接到(dao)續針。

     有(you)(you)了這個功(gong)能(neng)，IDlim定為(wei)280毫安(an)，允(yun)許使用(yong)(yong)小型變壓器(qi)5 W輸(shu)出(chu)（EF12.6使用(yong)(yong)）在(zai)不(bu)飽和的風險。分壓器(qi)的節(jie)電(dian)(dian)(dian)沒有(you)(you)安(an)裝（所以禁用(yong)(yong)此功(gong)能(neng)），以節(jie)省電(dian)(dian)(dian)能(neng)特(te)別是(shi)空載功(gong)耗(hao)。該VIPER17HN有(you)(you)幾(ji)個內置(zhi)的功(gong)能(neng)，如(ru)抖動，以減少電(dian)(dian)(dian)磁干擾的問題，軟啟動頻率，和突發的低(di)功(gong)耗(hao)模式(shi)工(gong)作在(zai)輕負載和無(wu)負載條(tiao)件(jian)下。過流(liu)，過載和過溫(wen)保護也(ye)是(shi)在(zai)內部實施，并保證(zheng)董事會的安(an)全運行(xing)。在(zai)中學方面，TSM1052恒(heng)壓恒(heng)電(dian)(dian)(dian)流(liu)（CV / CC）的控(kong)制器(qi)使用(yong)(yong)。在(zai)TSM1052和光電(dian)(dian)(dian)二極管(guan)的光電(dian)(dian)(dian)耦合器(qi)是(shi)直接供應(ying)的輸(shu)出(chu)電(dian)(dian)(dian)壓。其電(dian)(dian)(dian)源的TSM1052（為(wei)1.7 V分鐘）電(dian)(dian)(dian)壓范圍內進行(xing)精確的恒(heng)定電(dian)(dian)(dian)流(liu)調節(jie)，即使輸(shu)出(chu)電(dian)(dian)(dian)壓降至1.5伏(fu)特(te)，1.6五(wu)，此范圍通常(chang)為(wei)所有(you)(you)電(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)器(qi)應(ying)用(yong)(yong)不(bu)夠。當輸(shu)出(chu)電(dian)(dian)(dian)壓低(di)于(yu)(yu)這一限制電(dian)(dian)(dian)路(lu)的監管(guan)，屬(shu)于(yu)(yu)損失，保護了口(kou)腔扁平(ping)(ping)苔蘚調用(yong)(yong)和系統始于(yu)(yu)呃(e)逆模式(shi)下工(gong)作。如(ru)果由(you)于(yu)(yu)某種原因，目(mu)前(qian)監管(guan)的需要到零輸(shu)出(chu)電(dian)(dian)(dian)壓水(shui)平(ping)(ping)（即短路(lu)），它是(shi)足夠提供TSM1052和帶(dai)有(you)(you)電(dian)(dian)(dian)壓等于(yu)(yu)輸(shu)出(chu)電(dian)(dian)(dian)壓的總(zong)和，從TR1C電(dian)(dian)(dian)壓二極管(guan)纏繞在(zai)前(qian)進的方式(shi)糾正。有(you)(you)關這一具(ju)體原理圖，請使用(yong)(yong)TSM1052見應(ying)用(yong)(yong)筆記AN2448（超小型電(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)器(qi)更多(duo)信息）。

     R7的(de)電(dian)(dian)(dian)(dian)(dian)阻器被添(tian)加到(dao)提供電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)壓(ya)(ya)降補償。較高(gao)的(de)輸出電(dian)(dian)(dian)(dian)(dian)流(liu)，輸出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)越高(gao)，對(dui)電(dian)(dian)(dian)(dian)(dian)路板的(de)輸出端測量。這樣，對(dui)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)連(lian)接(jie)的(de)單位負載(zai)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)降得到(dao)補償，同(tong)時提供給(gei)負載(zai)的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)基本不變。更多(duo)的(de)細節，因為(wei)r7同(tong)樣等于九號，輸出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)增(zeng)加0.2毫安的(de)輸出電(dian)(dian)(dian)(dian)(dian)流(liu)壓(ya)(ya)。這一數額(e)的(de)基礎上選擇(ze)為(wei)這些應用程序（通常約為(wei)0.2-0.3Ω）典型的(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)(dian)阻。